WO2008133081A1 - Analog multiplexer with insulation power supply - Google Patents

Analog multiplexer with insulation power supply Download PDF

Info

Publication number
WO2008133081A1
WO2008133081A1 PCT/JP2008/057271 JP2008057271W WO2008133081A1 WO 2008133081 A1 WO2008133081 A1 WO 2008133081A1 JP 2008057271 W JP2008057271 W JP 2008057271W WO 2008133081 A1 WO2008133081 A1 WO 2008133081A1
Authority
WO
WIPO (PCT)
Prior art keywords
pulse
power supply
fet
transformer
generating
Prior art date
Application number
PCT/JP2008/057271
Other languages
French (fr)
Japanese (ja)
Inventor
Seiichi Saito
Yoshihiro Akeboshi
Hirokazu Nomoto
Original Assignee
Mitsubishi Electric Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corporation filed Critical Mitsubishi Electric Corporation
Priority to CN200880007051XA priority Critical patent/CN101627539B/en
Priority to US12/525,556 priority patent/US7898315B2/en
Priority to JP2009511791A priority patent/JP4832571B2/en
Priority to EP08740359.8A priority patent/EP2109221B1/en
Publication of WO2008133081A1 publication Critical patent/WO2008133081A1/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/002—Switching arrangements with several input- or output terminals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/002—Switching arrangements with several input- or output terminals
    • H03K17/005—Switching arrangements with several input- or output terminals with several inputs only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
    • H03K17/689—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors with galvanic isolation between the control circuit and the output circuit
    • H03K17/691—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors with galvanic isolation between the control circuit and the output circuit using transformer coupling
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/08—Continuously compensating for, or preventing, undesired influence of physical parameters of noise
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
    • G01R1/206—Switches for connection of measuring instruments or electric motors to measuring loads
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/2506—Arrangements for conditioning or analysing measured signals, e.g. for indicating peak values ; Details concerning sampling, digitizing or waveform capturing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/1205—Multiplexed conversion systems
    • H03M1/122—Shared using a single converter or a part thereof for multiple channels, e.g. a residue amplifier for multiple stages
    • H03M1/1225—Shared using a single converter or a part thereof for multiple channels, e.g. a residue amplifier for multiple stages using time-division multiplexing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/124—Sampling or signal conditioning arrangements specially adapted for A/D converters
    • H03M1/1245—Details of sampling arrangements or methods

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Electronic Switches (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

An analog multiplexer with an insulation power supply which can perform high precision analog data collection easily even in case of high density placement and routing without requiring a shield surrounding the entire transformer. The analog multiplexer comprises an analog signal transformer having a primary winding for receiving an analog signal via an FET and a secondary winding for generating a pulse having the amplitude of the analog signal by driving the FET on/off, a drive transformer having a primary winding for receiving a drive pulse via an FET and a secondary winding generating a pulse for turning the FET on/off, a circuit for generating an inhibit pulse having a pulse width wider than that of the drive pulse, an AND gate for taking logical product of continuous pulse and inhibit pulse from a continuous pulse generation circuit to obtain a pulse train for power supply, and a rectifying/smoothing circuit for obtaining a DC voltage depending on the pulse train for power supply and applying a DC voltage to the primary winding of the transformer via a high resistance.
PCT/JP2008/057271 2007-04-19 2008-04-14 Analog multiplexer with insulation power supply WO2008133081A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN200880007051XA CN101627539B (en) 2007-04-19 2008-04-14 Analog multiplexer with insulation power supply
US12/525,556 US7898315B2 (en) 2007-04-19 2008-04-14 Analog multiplexer with insulation power supply
JP2009511791A JP4832571B2 (en) 2007-04-19 2008-04-14 Analog multiplexer with isolated power supply
EP08740359.8A EP2109221B1 (en) 2007-04-19 2008-04-14 Analog multiplexer with insulation power supply

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-110272 2007-04-19
JP2007110272 2007-04-19

Publications (1)

Publication Number Publication Date
WO2008133081A1 true WO2008133081A1 (en) 2008-11-06

Family

ID=39925539

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/057271 WO2008133081A1 (en) 2007-04-19 2008-04-14 Analog multiplexer with insulation power supply

Country Status (5)

Country Link
US (1) US7898315B2 (en)
EP (1) EP2109221B1 (en)
JP (1) JP4832571B2 (en)
CN (1) CN101627539B (en)
WO (1) WO2008133081A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6672742B2 (en) * 2015-11-26 2020-03-25 株式会社デンソー Signal control device
CN106771792B (en) * 2017-03-29 2023-11-03 株洲中达特科电子科技有限公司 Locomotive converter test system
JP6979588B2 (en) * 2018-02-23 2021-12-15 パナソニックＩｐマネジメント株式会社 Illumination optical communication device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5185769A (en) * 1975-01-06 1976-07-27 Hitachi Ltd
JPS6075999A (en) * 1983-09-30 1985-04-30 株式会社東芝 Analog input unit
JPS62144233A (en) * 1985-12-19 1987-06-27 Toshiba Corp Analog input device
JPS63113622A (en) 1986-10-30 1988-05-18 Toshiba Corp Analog input device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5899013A (en) 1981-12-09 1983-06-13 Toshiba Corp Analog input device
JPS58147233A (en) * 1982-02-26 1983-09-02 Yokogawa Hokushin Electric Corp Analog input device
JPS6010449B2 (en) 1982-07-08 1985-03-18 三菱電機株式会社 Analog-digital converter
JPS62242412A (en) 1986-04-15 1987-10-23 Canon Inc Analog multiplexer circuit
JPH07244561A (en) * 1994-03-07 1995-09-19 Mitsubishi Electric Corp Analog input device
CN2277097Y (en) * 1994-12-29 1998-03-25 中国人民解放军海军工程学院 Program-controlled d.c voltage-stabilized source
US7098719B2 (en) * 2003-10-09 2006-08-29 Siemens Aktiengesellschaft Multiplexer with clock suppression

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5185769A (en) * 1975-01-06 1976-07-27 Hitachi Ltd
JPS6075999A (en) * 1983-09-30 1985-04-30 株式会社東芝 Analog input unit
JPS62144233A (en) * 1985-12-19 1987-06-27 Toshiba Corp Analog input device
JPS63113622A (en) 1986-10-30 1988-05-18 Toshiba Corp Analog input device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2109221A4 *

Also Published As

Publication number Publication date
CN101627539A (en) 2010-01-13
CN101627539B (en) 2011-11-23
US7898315B2 (en) 2011-03-01
EP2109221A1 (en) 2009-10-14
EP2109221A4 (en) 2014-04-16
EP2109221B1 (en) 2015-03-18
JPWO2008133081A1 (en) 2010-07-22
JP4832571B2 (en) 2011-12-07
US20100019828A1 (en) 2010-01-28

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